In Depth: Here's how your phone is tracking you right now

Your mobile phone already knows where it is, how you're holding it, what you're saying to it and how fast you're moving.Yet with significant improvements in mobile sensor technology just around the corner, this is only the beginning chapter in the era of self-aware devices and continuous data logging. There's much more to come.We're now used to phones and tablets recognising when they're being held upside down and flipping the screen accordingly, but even this kind of technology is a relatively